Divers in Italy on Saturday found the body of a woman wearing a life jacket abroad the wrecked Costa Concordia, bringing the official death toll in the crash up to 12. At least 20 others are still missing as hope fades that any more survivors will be found a week after the ship crashed into rocks on the island of Giglio. The woman’s body was found in an area of the ship completely under water, said Francesca Maffini, a spokeswoman for Franco Gabrielli, the head of the civil protection agency in charge of the search. Authorities said they will search all 1,500 cabins of the 114,000-ton ship, but the search remains difficult with the ship in a horizontal position. Sea conditions are calm on Saturday morning, but a forecast of high waves later in the day in the Mediterranean has caused many to worry the ship will be swept out to sea.